Metalworking press



June 15, 1937. F. J. RODE ET AL I 2,084,066

METALWORKING PRES S Filed April 28, 1933 5 Sheets-Sheet l Jun 15,1937.F. .1. RODE ET AL 2,034,066

METALWORKING PRES 5 Filed April 28, 1933 5 Sheets-Sheet 2 June 15, 1937.F. J. RODE ET AL METALWORKING PRESS Filed' April 28, 1933 5 Sheets-Sheet3 F. J. ona ET AL 2,084,066

METALWORKING PRESS Filed April 28, 1933 5 Sheets-Sheet 4 Q June 15,1937. F. J. RODE ET AL METALWORKING PRES 5 Filed April 28. 1953 sSheets-Sheet s Patented June 15, 1937 UNITED STATES PATENT OFFICE8,084,086 METALWORKING PRESS Frcdrich J. Rode, Chicago, Ill., and AdamZiska,

Ill., poration, nois by direct and to said Rode, Chicago,

a corporation of Illi- Application April 28, 1933, Serial No. 668,318

4 Claims.

' This invention relates to improvements in metal working presses, andone of the objects of the same is to provide a press of this characterwhich will be of a steel welded construction, that is the 5 front andback walls of the press will be formed from plates, and these partstogether with the end walls or uprights will be secured together bywelding, with the result that the cost of manufacture and of assemblingwill be greatly reduced, and a compact arrangement will be produced.

Important economies can be effected as the different parts can be cutand welded to the proper size, eliminating the necessity of patterns andtheir well known inelasticity for changes. Another important advantageis the added strength obtainable, coupled with greatly reduced weight ofmaterial used in the making of the press. The elimination of many partswhich formerly made up a press of this character, such as for instancethe bed, cro uprights, tie rods, etc., results in great saving of laborand in the machining and assembly, and further assures greater accuracyin the finished machine.

I A further object is to provide improved means for reciprocating theram whereby the crank shafts which are usually arranged parallel withthe front and rear faces of the press will be dispensed with, and theram will be actuated by 30 mechanism which is housed within the pressand arranged so that all of the stress and strain of the ram as well asthe actuating mechanism, will not only be borne by the front and rearplates of the press, but all of the stresses and strains 35 exerted bythe work will be within the confines of the frame structure. The endwalls or uprights serve only to resist any tendency of the front andrear walls becoming displaced with respect to each other under suchstrains.

A further object is to provide improved actuating mechanism for the ram,which embodies bull gears having eccentrics directly attached thereto,the axes of the eccentrics and of the gears being arranged transverse tothe front and rear 45 walls of the press, the gears and eccentrics beingsupported entirely by the front and rear plates or walls, connectionsbeing made between the eccentrics and the ram at four points, preferablyadjacent the corners of the ram, to main- 50 tain the ram againsttilting movement, at any time during the operation of the press.

To the attainment of these ends and the accomplishment of other new anduseful objects as will appear, the invention consists in the features 55of novelty in substantially the construction, comenlarged scale, takenon bination and arrangement of the several parts hereinafter more fullydescribed and claimed and shown in the accompanying drawingsillustrating this invention and in which Figure 1 is a view partly infront elevation, partly in section and partly broken away, and withparts omitted, 01' a press of this character constructed in accordancewith the principles of this invention.

Figure 2 is an irregular vertical sectional view taken on line 2-2,Figure 1.

Figure 3 is a top plan view, on an enlarged scale, of Figure 1, and withparts omitted.

Figure 4 is a horizontal sectional view, on an line 4-4, Figure 1, and

with parts omitted.

Figure 5 is a vertical sectional view, on an enlarged scale, taken online 55, Figure 3.

Figure 6 is a horizontal sectional view, on an enlarged scale, taken online 6-6, Figure '1, and

with parts omitted.

Referring more particularly to the drawings, the numerals l and IIdesignate respectively the front and rear members of the press, and.

these members are formed of steel plates of the desired configuration,provided with the necessary openings which serve as bearings for theparts to be hereinafter described, and to facilitate access to the workand to other parts of the mechanism, such openings being arrangedwherever desired or necessary.

The end walls I! are also formed preferably of steel plates and thefront, rear and end walls are secured together by brazing or welding soas to form an entire steel welded structure, the end walls being ofsuitable length to provide the necessary space between the front andrear walls or plates and in which spacethe ram actuating mechanism isarranged.

A portion of the front plate may be provided with supports l3 arrangedin a position to support a bed or bolster plate It also secured inposition by being welded, brazed, or otherwise permanently fastened tothe supports l3.

In presses of this character the bed or bolster plate I 4 supports ausual die l having a work holding ring or member 18 co-operatingtherewith, the latter being supported by the usual pins I! which passloosely through the bed or bolster plate l4, and rest upon a pad [8usually supported by means of a cushioning device |9.arranged below thebed or bolster plate.

The numeral 20 designates areciprocable ram movable upon guides 2|supported by the portions 22 of the front and rear plates and which pct-44 and 45 respectively mesh with gears 2 tions constitute the uprightsof the press, and the ram 26 may be counterbalanced by means ofcounterbalancing devices 23, any number of which may be provided andpreferably of the pneumatic 5 cylinder type, the devices embodyingpiston rods 24 connected to pistons within the cylinders 23 (not shown)and also connected by means of armsor brackets 26 with the ram 26.

The operating mechanism for the ram which will effect a reciprocation ofthe ram, is arranged within the space between the front and rear wallsor plates, and embodies bull gears 26 mounted upon shafts 21, whichlatter have bearings in the front and rear walls or plates l6 and ll ofthe press, and the shafts 21 are so arranged that the axes thereof andof the gears 26 are arranged transverse to the front and rear walls orplates l6 and ii and parallel with the end walls or uprights I2. Thegears 26 are preferably arranged in alinement with each other and out ofmesh, and secured to each of the gears 26 to rotate therewith and oneach side of the respective gears are eccentrics 26, the gears and therespective eccentrics being preferably of an integral forma-. tion.

Eccentric straps 29 encompass the respective eccentrics 28 and connectedto each of the eccentric straps 23 are links 30 which in turn areconnected to the ram 26.

Four of the eccentrics and the eccentric connections with the ram 26 arepreferably provided and the connections with the ram are preferably madeat the corners thereof to form what might be termed a "four pointsuspension for the ram, and these connections operate not only toreciprocate theram but to maintain the ram against a tilting movement atany time during the cycle of operation of the press or reciprocation ofthe ram.

By reason of the fact that the axes of the gears 26 and eccentrics 28are transverse to the front and rear walls or plates of the press, andas the eccentrics are connected directly with the respective gears 26,it will be manifest that a very compact arrangement may be provided andthe usual crank shafts for reciprocating the ram and which extend indirections parallel with the front and rear faces of the press, will bedispensed with.

Motion is imparted to the gears 26 preferably by means of a motor 3 I,preferably mounted upon a bracket 32. Connected with the shaft of themotor is a pulley 33, over which a belt 34 passes, and this belt alsopasses over a pulley 35 connected to a shaft 36, which latter isjournaled in the front and rear walls or plates l6 and II of the press,the axis thereof being parallel with the axes of the gears 26.

Connected with the shaft 36 to rotate therewith are gears 31, preferablytwo in numbenwhich in turn mesh with gears 36 secured to a shaft 39 forrotation therewith, and this shaft 39 is iournaled in suitable bearings40 in the front and rear walls or plates Ill and H of the press and arehoused therebetween.

One of the gears 36 meshes with another gear 4| also housed within thepress and this gear 4| is connected to a shaft 42 for rotationtherewith, and the shaft 42 is journaled in suitable bearings 43 in thefront and rear walls or plates in and II. The shafts 39 and 42 projectthrough and beyond the front wall or plate It! a sufficient distance tohave respectively secured thereto and for rotation therewith gears44-45. The gears 46-41 with respect to each other and for arrangedpreferably on the outside of the plate or wall l6 and securedrespectively to shafts 46-46 for rotation therewith. These shafts 48-49are ioumaled respectively in suitable bearings Bil-6i inthc front andrear walls or plates l0 and H.

Secured respectively to the shafts 66-5l and for rotation therewith aregears 62-63 which in turn mesh respectively with gears 26, and to whichlatter the respective eccentrics are secured for rotation 56 that by theoperation of the motor the main driving shaft 36 will be rotated andmotion will be imparted from this shaft through the medium ofthe gear 31to the gear 36. The gear 36 meshing with the gear 4| will rotate thelatter and also meshing with the gear 52 will rotate it, while the gear4| meshing with the gear 63 will rotate the latter.

The rotation of the gears 52 and 53 and meshing respectively with thegears 26 will rotate them and this in turn will rotate the respectiveeccentrics 26 to cause a reciprocatory movement to be imparted to theram 23, and upon which ram 20 the usual die 54 that co-operates with thedie I6, is mounted.

With this improved construction it will be manifest that a very compactarrangement of press will be provided and that the cost of manufactureand of assembling the press will be greatly reduced. At the same timethe usual long crank shafts which extend parallel with the front andrear faces of the press will be obviated, and,

in the present construction none of the welds will take any directstrain of the working parts, but all of the stress and strain of theoperation upon the work will be. borne entirely by the front and rearplates or walls of the press and all obiectionable torque will beovercome. The end walls l2 serve only as a means for maintaining thefront and rear walls against displacement the purpose of maintaining arigid structure.

Obviously the end walls may be of any de-- sired thickness and suitableportions of the end walls may be hollow for the sake of lightness.

It will also be obvious that webs or braces 56 may be provided betweenthe front and rear walls or plates, if desired or necessary, andsuitably arranged, and the front and rear walls may, ifdesired, befastened together by suitable tie rods or bolts66.

It is also obvious that the structure may be reinforced or bracedwherever necessary or desired, and the press may be supported upon anysuitable form or-type of base. The press is preferably supported bymeans of braces 51 which may engage and rest upon a suitable support 56,such as the floor of a building, and an opening or pit 69 may beprovided, if necessary, so as to receive the lower extremity of thepress and the cushioning device l9, if the latter is employed.

While the preferred form of the invention has been herein shown anddescribed, it is to be understood that various changes may be made inthe details of construction and in the combination and arrangement ofthe several parts, within the scope of the claims, without departingfrom the spirit of this invention.

What is claimed as new is:- v

1. A supporting frame for power presses or the like, formed by front andrear upright plates, spaced upright columns formed integral with anddepending from each of the plates, said columns on each platev being inalinement but spaced from each other, end walls arranged adjacent thelongitudinal edges of the uprights and at the ends of the plates abovethe uprights, the edges of the plates being welded together, andintegral bed supporting portions carried by and disposed between theuprights, the said uprights at the ends of the bed being uninterrupted,the upper portions of the plates constituting a ,hollow crown, therebeing alined shaft bearing openings in the front and rear plates of thecrown portion. of the press, within the confines of and spaced from theedges of said plates, and within the confines of the said uprightcolumns.

2. A supporting frame for power presses or the like, formed by solid andcomparatively thin front and rear upright plates, spaced upright columnsintegral with and depending from each of the plates, end Walls arrangedadjacent the longitudinal edges of the uprights and at the ends of theplates above the uprights, the edges of the plates being weldedtogether, and bed supporting portions integral with and disposed betweenthe uprights, the said plates constituting a hollow crown, incombinationwith shafts having bearings directly in the plates within theconfines of and-spaced from the edges of the front and rear plates andextending across the faces therebetween, said shafts being also disposedwithin the confines of said upright columns, whereby all verticalstresses of said shafts will be sustained by and exerted in directionsedgewise of said plates, and driving gears of substantial diametercarried by the shafts and disposed within the hollow crown, rectly abovethe press slide.

3. A power press embodying a bed, spaced uprights, a crown, a slidereciprocably mounted between said uprights and said bed and crown, saidcrown embodying front and rear plates comparatively thin with relationto their other dimensions, means for connecting said plates together, ashaft mounted in said plates and extending from front to rear of thepress, said shaft being located within the confines of said uprights andalso spaced from the edges of the plates, whereby the vertical stressesexerted by said shaft are absorbed by said plates in a directionedgewise of said plates, and eccentric means between said shaft andslide.

4. A power press embodying a bed, spaced uprights, a crown, a slidereciprocably mounted between said uprights and said bed and crown, saidcrown embodying front and rear plates comparatively thin with relationto their other dimenand located disions, means for connecting saidplates together,

two shafts mounted in said plates and extending from the front to therear of the press, both of said shafts being located within the confinesof said uprights and also spaced from the edges of the plates, wherebythe vertical stresses exerted by said shafts are absorbed by said platesin a direction means individual to shafts and said slide.

and between each of said FREDRICH J. RODE. ADAM ZISKA.

edgewise of said plates, and eccentric

